The study that made these findings saw psychologist Dan Ariely Ariely examine workers who assembled computer chips in a technology company to find out what incentives made them work harder.

Participants were sent one of three messages at the start of the week, promising them either pizza, a cash bonus of the equivalent to $35 NZD, or compliments from the boss in the form of a text message as a reward for hitting each day's targets.

Some workers received no message to act as a control group for productivity levels.

For those who were offered pizza, their productivity increased by 6.7 percent in just one day.

The complimentary text message group came in a close second with an increase of 6.6 percent. The cash bonus group increased productivity by 4.9 percent.

Now go ahead and link this article to your boss and if they're wise then pizza will be coming your way ASAP.